All things Sunsynk (Deye, Inge, etc...)

DrJohnZoidberg said:
I've just been double checking that I have everything in order for when my third battery gets installed next month and sent off a mail to the installer asking about the fusing which I think needs upgrading but nothing was reflected on the quote.

Then I was going through the battery install manual and noticed that my system isn't wired according to how the manual specifies it should be done. I guess it's not wrong but I suspect it will have to be changed when the third battery is added.

This is how my 2 current batteries are connected:

View attachment 1552477

This is how the manual shows how the multiple batteries should be connected:

View attachment 1552479

This way looks a lot more practical when having more than 2 batteries.

Also I currently have 2 x 160A fuses for the batteries, would this suffice for 3 batteries (each battery is max 100A) or should these fuses be bumped up slightly?
Click to expand...
It's the same. Parallel.
I have a battery with only one set of leads and have both connected to a bus box before inverters.
The only trouble you'll have with 3 is getting the leads the same length... In that case paralleling from battery to battery might be better.
 
walterl said:
The battery minimum is set to 30% so it's possible that I just have to wait for it to reach 30% for the error to go away, currently it's at 8%
Click to expand...


1688913576450.png

Shut Down: The SoC percentage of the battery/ies that you do not want the inverter to exceed. It is set to the lowest that you wish to discharge your battery. Check your battery's manual and warranty to see what value you should set this to. The inverter will shut everything down except for essentials like MPPT and battery charging.
Low Batt: When the battery/ies reach this SoC, you will get an audible warning.
Restart: When the inverter "shuts down" after the battery meets or exceeds the Shut Down SoC percentage, it will "Restart" or wake up fully only when this SoC is reached.

It looks to me, from what you decscribe, that your shut down was set to 5%, and restart to 30%. Check the battery/ies warranty to ensure that it allows for discharge up to 5% SoC (95% DoD), if not, adjust to the correct value.
 
lkpat said:
It's the same. Parallel.
I have a battery with only one set of leads and have both connected to a bus box before inverters.
The only trouble you'll have with 3 is getting the leads the same length... In that case paralleling from battery to battery might be better.
Click to expand...
Yes but when adding the third battery there will be three connectors that need to be attached to each fuse, not sure there will be enough space as the trunking is already basically full. If it's wired battery to battery then it's only one cable going to each fuse.
 
Question (probably for the more electrically inclined).

I have two Sunsynk's connected to a 3-phase ATS (automatic transfer switch) with a 20KVA Bundupower generator.

When the gennie fires up (to charge batteries when they're low, during loadshedding), the one inverter is happy, and shows 50Hz from the gennie.

The other shows briefly 50Hz, then drops down to zero, and refuses to charge from the gennie.

Both are connected to a common neutral and 2 of the 3 phases from the gennie. Geysers and non-critical stuff are connected to the 3rd phase, so the loads are fairly balanced.

Anyone seen something like this or have ideas ?

There is an earth-neutral bond as well, shared by the two inverters, but the relay is driven by the primary inverter.
 
TheRoDent said:
Question (probably for the more electrically inclined).

I have two Sunsynk's connected to a 3-phase ATS (automatic transfer switch) with a 20KVA Bundupower generator.

When the gennie fires up (to charge batteries when they're low, during loadshedding), the one inverter is happy, and shows 50Hz from the gennie.

The other shows briefly 50Hz, then drops down to zero, and refuses to charge from the gennie.

Both are connected to a common neutral and 2 of the 3 phases from the gennie. Geysers and non-critical stuff are connected to the 3rd phase, so the loads are fairly balanced.

Anyone seen something like this or have ideas ?

There is an earth-neutral bond as well, shared by the two inverters, but the relay is driven by the primary inverter.
Click to expand...


Are the two inverters running independently ? Or have they been paralleled?

If they have been paralleled then my understanding is that the input, Eksdom or gen, has to come from the same phase.

If they are running independently then I'm not sure what the issue could be.
 
Düber said:
Are the two inverters running independently ? Or have they been paralleled?

If they have been paralleled then my understanding is that the input, Eksdom or gen, has to come from the same phase.

If they are running independently then I'm not sure what the issue could be.
Click to expand...
They're independant, running off 2 different phases from Eskom, and the gennie. Not paralleled. Only common thing is the neutral.

When the ATS switches over, 3 phases are live from the gennie. 2 phases feed the two SunSynk's and the 3rd, some none-critical loads like geysers etc.
 
TheRoDent said:
They're independant, running off 2 different phases from Eskom, and the gennie. Not paralleled. Only common thing is the neutral.

When the ATS switches over, 3 phases are live from the gennie. 2 phases feed the two SunSynk's and the 3rd, some none-critical loads like geysers etc.
Click to expand...
Then I'm not 100% sure whats going on, only thing I can think is that the input ranges on the second inverter perhaps need to be widened a bit on the frequency side?

Perhaps copy the Hz settings from the "working" inverter.
For my little petrol generator to work I had to open it a fair amount, 48-52Hz if I remember correctly.
 
If you swap the inputs around and the situation stays the same I think you could then assume a problem with the inverter. Would be my starting point.
 
DrJohnZoidberg said:
I've just been double checking that I have everything in order for when my third battery gets installed next month and sent off a mail to the installer asking about the fusing which I think needs upgrading but nothing was reflected on the quote.

Then I was going through the battery install manual and noticed that my system isn't wired according to how the manual specifies it should be done. I guess it's not wrong but I suspect it will have to be changed when the third battery is added.

This is how my 2 current batteries are connected:

View attachment 1552477

This is how the manual shows how the multiple batteries should be connected:

View attachment 1552479

This way looks a lot more practical when having more than 2 batteries.

Also I currently have 2 x 160A fuses for the batteries, would this suffice for 3 batteries (each battery is max 100A) or should these fuses be bumped up slightly?
Click to expand...
DC cables look good!

One concern I have is above your Battery Disconnect, you have wires going into the TOP trunking.
Looking at the rest of the Lugs on the inverter, it seems like you will ALSO be running your AC wires in the same trunking.

Ideally you want AC and DC cables separated - Different Trunking.
 
So something weird happened to my system over the weekend. The solar adds a new dimension into this space.

My battery depleted itself even though grid charge was on and SOC% was at 25%.

So as follows:
Battery setup shutdown is 20%, restart 50%, low battery 26%.
SOC 50% all round with grid charge all round.

My battery ran out of power during a 2hour slot. I am not sure how and why. All non-essentials were off as it was LoadShedding so not entirely sure what drained the battery. I am not sure what if it shutdown due to it reaching 26% but when all restarted it showed after LoadShedding, the battery is at 1%.

Any ideas? Might have to call my installer back to fix something.
 
1edge1 said:
So something weird happened to my system over the weekend. The solar adds a new dimension into this space.

My battery depleted itself even though grid charge was on and SOC% was at 25%.

So as follows:
Battery setup shutdown is 20%, restart 50%, low battery 26%.
SOC 50% all round with grid charge all round.

My battery ran out of power during a 2hour slot. I am not sure how and why. All non-essentials were off as it was LoadShedding so not entirely sure what drained the battery. I am not sure what if it shutdown due to it reaching 26% but when all restarted it showed after LoadShedding, the battery is at 1%.

Any ideas? Might have to call my installer back to fix something.
Click to expand...
Hubble?
 
I need some advice.

We ran on the battery through the night and charged it via the panels today. Also did some washing and used the normal household stuff. When sun went down, I saw on the Pre-paid meter that we still used about 15 units from this morning. I don't understand on what though if one looks at the data on the app.

What am I missing? (grid charge was disabled for the battery).
 

Attachments

  • Screenshot_20230710_174151_Sunsynk Connect.jpg
    Screenshot_20230710_174151_Sunsynk Connect.jpg
    88.9 KB · Views: 58
  • Screenshot_20230710_173835_Sunsynk Connect.jpg
    Screenshot_20230710_173835_Sunsynk Connect.jpg
    85.3 KB · Views: 57
Katelknaap said:
I need some advice.

We ran on the battery through the night and charged it via the panels today. Also did some washing and used the normal household stuff. When sun went down, I saw on the Pre-paid meter that we still used about 15 units from this morning. I don't understand on what though if one looks at the data on the app.

What am I missing? (grid charge was disabled for the battery).
Click to expand...
Its likely your Use Timer is turned off as that graph definitely shows full grid usage - either that or your PV is set to only charge battery and not support load
 
Mzezman said:
Its likely your Use Timer is turned off as that graph definitely shows full grid usage - either that or your PV is set to only charge battery and not support load
Click to expand...
It doesn't show full grid use though, the PV's green line is clearly visible?
 
1edge1 said:
BlueNova BP at 5.2kw.

It's been stable ever since, not sure what the issue was but been hitting the SOC ever since.
Click to expand...
My guess would be that one cell was lower than the others and so during loadshedding, the 2 hour window was enough to drain it so that the battery shutdown.

I've had it once before where my shoto turned off at 20% but all other times it usually turns off at 15%. Couldn't really explain it either as I didn't have enough data on the battery side to check.

Sometimes helps to get your batteries to 100% and to let the cells balance at the top.
 
Katelknaap said:
I need some advice.

We ran on the battery through the night and charged it via the panels today. Also did some washing and used the normal household stuff. When sun went down, I saw on the Pre-paid meter that we still used about 15 units from this morning. I don't understand on what though if one looks at the data on the app.

What am I missing? (grid charge was disabled for the battery).
Click to expand...
The inverter says you only imported 1.3kwh from the grid.
Was your prepaid control pad and meter communicating? Maybe they synced old data.
Are you sure you read the start and end correctly?
 
Fcon_Vpro said:
The inverter says you only imported 1.3kwh from the grid.
Was your prepaid control pad and meter communicating? Maybe they synced old data.
Are you sure you read the start and end correctly?
Click to expand...
I took a photo of the meter's reading in the morning and compared it late in the day. 100% sure the reading was correct. I'll try again today, but we have loadshedding from 14:00 so I won't be able to replicate yesterday exactly. Will still see what usage the meter indicates vs what the app shows.
 
You must log in or register to reply here.
Back
Top
Sign up to the MyBroadband newsletter
X